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Answered 2016-02-28 21:13:41
V on a light bulb means volts. W means watts.
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If it's a 100 W bulb that does not say everything about it. It could be a 12 v, 24 v, 120 v or a 230 v bulb, or other voltage. Look on the case or the packet.
There are zero amps in a 300 watt bulb. Watts are the product of amps times volts. W = A x V. To find amperage use the equation A = W/V. If you find the voltage of the 300 watt bulb uses, divide the wattage by the voltage and it will give you the amps of a 300 watt bulb.
Recall power P = V2/R For a constant V, P is inversely related to the resistance of the filament. Hence 40 W bulb would have more resistance than that of 200 W bulb.
The apparent answer to the question would be (100 W)/(120 V) = 0.8333 A, assuming that, as a pure resistance load, the light bulb has a power factor close to 1.0.
Power= V * A so 120 V * 5 A = 600 W (J/s)
It is expressing a change in the value of something as a percentage of its original value. So, if the original value (V) changes to the new value (W) then the change is W - V. Then, the relative change is (W - V)/V and the percentage change is 100*(W - V)/V = 100*(W/V - 1)
Power (w) = Volts (v) * Current (I) I = P/V 100w bulb = 100/230 = 434mA 40w bulb = 40/230 = 174mA
A 240 v 14 w cfl bulb uses about 0.14 amps.
The amps times the volts equals the watts. A 120 v 60 w lamp takes ½ amp, while a 240 v 60 w lamp takes ¼ amp
it means that a bulb is burned out
To do any replacements of different bulbs you have to consider what the new current will be and if the wire size and fuse will be able to take the new current (amps). Use this formula, W = A x V or A = W/V.
The formula you are looking for is I = W/E. Amps = Watts/Volts.
40W Bulb will spiol due to over current passing through its coilAnswerSince the 40-W lamp has a higher resistance than the 100-W lamp, the greater voltage drop will appear the 40 W lamp. As a result the 40 W lamp will be subjected to a voltage beyond its 100-V rating, and the 100-W lamp will be subjected to a voltage below its 100-V rating. Therefore, the 40-W lamp will burn much more brightly than the 100-W lamp.Incidentally, the symbols for the 'watt' and 'volt' are upper, not lower, case: W and V.
There is no Roman numeral W. There is I, V, X, L, C, D and M but no W.
The 100-W bulb because it transforms electrical energy at a faster rate than a dimmer bulb.
V Vulture W Wolf
The formula you are looking for is W = I x E. W = Amps x Volts.
100 W tungsten incandescent (220 V): 1380 lm
The formula you are looking for is I = W/E. Amps = Watts/Volts.
VW as in Volkswagen I suppose... The resistance of an incandescent(glow wire) bulb depends on the power - the wattage.
The w means watt. It is a unit of measurement that quantifies the energy given off by the globe when it is switched on.
A table lamp with a 60 w bulb uses ¼ amp on a European 240 v system, or ½ amp on an American 120 v system.
In parallel, they both obviously have 220 v across them, so the 100 W bulb is obviously brighter than the 60 W one. The 60 W bulb has more resistance, and in series they both have to pass the same current, so the 60 W has more voltage across it and might be brighter.
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I'm assuming you mean the symbol (u) and not 'you'So:u = vw + zWhere vw means v * w (v times w)
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